description: If present, indicates that this questionnaire has expectations with respect to assembly. Specifically, indicates whether this form requires assembly (i.e. it can't be used directly without invoking the [$assemble](OperationDefinition-Questionnaire-assemble.html) operation operation on it) and/or whether it is intended for use only as a 'child' in an assembly process. The assembly processs might mean filling in item metadata based on information looked up from item.definitions and/or retrieving sub-questionnaires pointed to by [sub-questionnaire](StructureDefinition-sdc-questionnaire-subQuestionnaire.html) extensions. package_name: hl7.fhir.uv.sdc derivation: constraint name: AssembleExpectation type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation'} index: 1 value: choices: [valueCode] index: 3 valueCode: {type: code, choiceOf: value, index: 4} package_version: 4.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.0.0-ballot